Is there a way to use Antora without Git?

In my Antora project I have articles directory with several .adoc files. And here is part from my playbook:

site:
  title: Antora Demo Site
content:
  sources:
  - url: ./articles/

(was adapted from the demo).

Then, when I'm trying to build the site, it gives me an error:

error: Local content source must be a git repository

Is there a way to use Antora without Git?

(You ask "why"? Because I'm not developer or Git user. Rather, I'm a photographer and writer and I need some documentation tool for my personal ideas and notes. I know about Git and Mercurial, but they are overhead for my tasks).